Whiskey chaser? It's a revealing image (1-3)
I believe the answer is:
x-ray
This could be a double definition.
'whiskey chaser? it's a' is the first definition.
I know that 'whiskey' relates to this answer.
'image' is the second definition.
(X ray is an example)
'revealing' is the link.
Can you help me to learn more?
(Other definitions for x-ray that I've seen before include "Radiograph" , "Hospital photo" , "Hospital diagnostic aid" , "Personal negative view, used in medical diagnosis" , "Hospital image" .)